Scottoiler fitting..

Has anyone here fitted a Scottoiler to deliver lube to anywhere
*other* than the rear sprocket?

Reason for asking is that this new dual injector thingy is all a bit
Meccano and zip ties, and it would be a lot neater if it was mounted
above the chain, and delivered oil just above and before the front
sprocket.

Anyone tried it, or can see any potential problems?

 

Err, so the oil is fed to the *outside* of the chain as it runs round
the sprocket? If so, then the oil would get flung off before it had a
chance to penetrate the rollers.

 

Macie laid this down on his screen :

Above and before would cause two problems...

1. Centrifugal force is at its highest as the chain goes around the
front sprocket, so the oil would be flung off.

2. Oiling above (assume the outside) means that what little did stay on
the chain would have to fight against centrifugal force to lubricate
the side nearer the sprocket.

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Harry Bloomfield

There's no such thing as centrifugal force.

HTH.

--
Wicked Uncle Nigel - To stay young requires unceasing cultivation of
the ability to unlearn old falsehoods.

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
SBS#39 OMF#6 Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"
Suzuki TS250 "The Africa Single" Yamaha GTS1000

 

Assuming it's an o/x-ring chain, think about what o-rings are generally
used for in an engine. If the oil's penetrating the rollers, the
o-rings are fucked.

The only purpose of the oil is to stop the o-rings drying out, stop the
chain going rusty, & provide a bit of an impact cushion between the
rollers/side-plates & sprockets. All of which would be achieved to a
certain extent by oiling the top of the chain (especially when going
slowly), but not as effectively.

--
Krusty.

http://www.muddystuff.co.uk
http://www.muddystuff.us
Off-road classifieds

'02 MV Senna '03 Tiger (FOYRNB) '96 Tiger '79 Fantic 250

 

I thought that was the technical term for the equal and opposite reaction to
centripetal force?

Oh well, LAL

Dave

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, someone here

Tut.

You just don't get the same standard of pointless argument on Usenet
these days.

--
Wicked Uncle Nigel - To stay young requires unceasing cultivation of
the ability to unlearn old falsehoods.

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
SBS#39 OMF#6 Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"
Suzuki TS250 "The Africa Single" Yamaha GTS1000

 

Ah. Ok then.

If you can feel it, it exists.

Good enough?
--
Dave
GS850x2 XS650 SE6a
I demand nothing of you except that you amuse me.

Folding@Home Team UKRM
http://vspx27.stanford.edu/cgi-bin/main.py?qtype=teampage&teamnum=47957

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Grimly Curmudgeon

Not really. If you're not going to put your heart into this, it's not
worth doing.

--
Wicked Uncle Nigel - To stay young requires unceasing cultivation of
the ability to unlearn old falsehoods.

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
SBS#39 OMF#6 Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (On its hols) Kawasaki ZN1300 Voyager "Oh, Oh, It's so big"
Suzuki TS250 "The Africa Single" Yamaha GTS1000

 

I can't muster the enthusiasm for it atm. Fucking knackered trying to
drill a hole through a foot of solid concrete for an earth rod.
--
Dave
GS850x2 XS650 SE6a
I demand nothing of you except that you amuse me.

Folding@Home Team UKRM
http://vspx27.stanford.edu/cgi-bin/main.py?qtype=teampage&teamnum=47957

 

You're confusing the outer roller (which doesn't have O-rings) with
the (concentric) inner pin & bush (which often does).

I'd very much doubt that oil dripped onto the outside edge of the side
plates or the outer-facing surface of the rollers will do much useful
in rust prevention because most of it it will instantly get flung off.

I'm also a bit confused as to why chain O-rings should dry out when
other oil-retaining seals don't. If that were the case, surely you'd
need to regularly oil the outer surface of crankcase seals to stop
them drying out too, unless it's a different material.

 

Is this a five minute argument or the full half hour?

 

Bad form...

It was two feet. Two fucking feet; ffs.
--
Dave
GS850x2 XS650 SE6a
I demand nothing of you except that you amuse me.

Folding@Home Team UKRM
http://vspx27.stanford.edu/cgi-bin/main.py?qtype=teampage&teamnum=47957

 

Krusty pretended :

Agreed, but I would add it stops the chain rusting around the contact
area of the o-ring which in turn helps it run cooler. Once that starts
to rust the o-rings last no time at all.

That would be just as effective if the chain were stationary. Once the
chain starts to move centrifugal force will fling it straight off,
making the lubrication system little better than useless. Oiled on the
inside, centrifugal force aids the spread of the lubricant through the
entire chain.

 

I was kinda, but more dismissing than confusing. The outer rollers have
no effect on chain wear (stretching), so whilst you don't really want
them drying out completely & seizing up, they're nowhere near as
important as the pins.

Probably when going at speed, but you'd still get more oil on there
when riding slowly/sat at traffic lights etc than you would by spraying
chain wax every 500 miles. Plus you get the cleaning effect of an
automatic oiler, which is their real benefit. If any fling takes a bit
of grit with it, it's doing its job.

Different material, & very different conditions. Internal seals don't
have to cope with UV light for starters.

--
Krusty.

http://www.muddystuff.co.uk
http://www.muddystuff.us
Off-road classifieds

'02 MV Senna '03 Tiger (FOYRNB) '96 Tiger '79 Fantic 250

 

Oh, indeed, but the the chain overall will get *vastly* better
lubrication, rust prevention and cleaning if the oil feed is to the
inner side of the chain run. Which brings us back to my original
point.

My original comment was about the positioning of the oil feeds, not
whether oilers are a good idea per se. I think that we both agree
that they are.

So what sun factor is Scottoil, then?